An insight into the patterns and controls of the structure of South American Chaco woodlands
Logging, grazing, wood extraction, and anthropogenic fires are pervasive throughout the subtropical dry vegetation of South America leading to changes in woodlands structure and ultimately its degradation. The Chac ohaco biome encompasses the second-largest forest in South America and has a long history of intensive use. We sought to characterize the structure and heterogeneity of its woodlands across biogeo graphic subunits and climatic gradients, and evaluate structure controls. We quantified canopy height, cover, vertical complexity, vegetation amount above 3 m and total veg etation amount over 58 woodlands within the Argentinean Chaco by means of terres trial laser scanner. We assessed the relationship between three groups near the maximum, average and minimum values of each structural variable and precipitation, temperature and temperature of the coldest month using quantile regressions. We found large variability in structural attributes within each biogeographical subunit, showing woodland areas with similar structure across broad gradients of climate. This suggests a considerable impact of current and past land use in shaping woodland struc tures across the Chaco. Overall, structural variables were positively associated with precipitation and temperature, albeit more strongly to the former, except for canopy height, which showed a strong association with mean temperature of the coldest month. We hypothesize that land-use impact on woodland structure decreases with increasing precipitation, as the lack of water may limit the recovery of vegetation struc ture. Our results contribute to a better understanding of variation in key structural vari ables of Chaco woodlands in relation to climate and land use.
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Format: | info:ar-repo/semantics/artículo biblioteca |
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Wiley
2022
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Subjects: | Land Use, Precipitation, Temperature, Woodlands, Utilización de la Tierra, Precipitación Atmosférica, Temperatura, Formación Boscosa, Canopy Height, Dry Forest, LIDAR Technology, Terrestrial Laser Scanner, Altura del Dosel, Bosque Seco, Tecnología LIDAR, Escáner Láser Terrestre, Región Chaqueña, |
Online Access: | http://hdl.handle.net/20.500.12123/11799 https://onlinelibrary.wiley.com/doi/abs/10.1002/ldr.4186 https://doi.org/10.1002/ldr.4186 |
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oai:localhost:20.500.12123-117992022-05-04T11:11:16Z An insight into the patterns and controls of the structure of South American Chaco woodlands Ferraina, Antonella Baldi, German De Abelleyra, Diego Grosfeld, Javier Veron, Santiago Ramón Land Use Precipitation Temperature Woodlands Utilización de la Tierra Precipitación Atmosférica Temperatura Formación Boscosa Canopy Height Dry Forest LIDAR Technology Terrestrial Laser Scanner Altura del Dosel Bosque Seco Tecnología LIDAR Escáner Láser Terrestre Región Chaqueña Logging, grazing, wood extraction, and anthropogenic fires are pervasive throughout the subtropical dry vegetation of South America leading to changes in woodlands structure and ultimately its degradation. The Chac ohaco biome encompasses the second-largest forest in South America and has a long history of intensive use. We sought to characterize the structure and heterogeneity of its woodlands across biogeo graphic subunits and climatic gradients, and evaluate structure controls. We quantified canopy height, cover, vertical complexity, vegetation amount above 3 m and total veg etation amount over 58 woodlands within the Argentinean Chaco by means of terres trial laser scanner. We assessed the relationship between three groups near the maximum, average and minimum values of each structural variable and precipitation, temperature and temperature of the coldest month using quantile regressions. We found large variability in structural attributes within each biogeographical subunit, showing woodland areas with similar structure across broad gradients of climate. This suggests a considerable impact of current and past land use in shaping woodland struc tures across the Chaco. Overall, structural variables were positively associated with precipitation and temperature, albeit more strongly to the former, except for canopy height, which showed a strong association with mean temperature of the coldest month. We hypothesize that land-use impact on woodland structure decreases with increasing precipitation, as the lack of water may limit the recovery of vegetation struc ture. Our results contribute to a better understanding of variation in key structural vari ables of Chaco woodlands in relation to climate and land use. Fil: Ferraina, Antonella. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina Fil: Baldi, Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina Fil: Abelleyra, D. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina Fil: Grosfeld, Javier Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico y Tecnológico Patagonia Norte; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche; Argentina Fil: Verón, S. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina 2022-05-04T10:53:51Z 2022-05-04T10:53:51Z 2022 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11799 https://onlinelibrary.wiley.com/doi/abs/10.1002/ldr.4186 1085-3278 1099-145X https://doi.org/10.1002/ldr.4186 eng info:eu-repograntAgreement/INTA/PNBIO-1131034/AR./Inmunología molecular y genómica funcional aplicadas a interacciones patógeno hospedador de interés pecuario. info:eu-repo/semantics/openAccess application/pdf Wiley Land Degradation and Development 33 (5) : 723-738. (March 2022) |
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Land Use Precipitation Temperature Woodlands Utilización de la Tierra Precipitación Atmosférica Temperatura Formación Boscosa Canopy Height Dry Forest LIDAR Technology Terrestrial Laser Scanner Altura del Dosel Bosque Seco Tecnología LIDAR Escáner Láser Terrestre Región Chaqueña Land Use Precipitation Temperature Woodlands Utilización de la Tierra Precipitación Atmosférica Temperatura Formación Boscosa Canopy Height Dry Forest LIDAR Technology Terrestrial Laser Scanner Altura del Dosel Bosque Seco Tecnología LIDAR Escáner Láser Terrestre Región Chaqueña |
spellingShingle |
Land Use Precipitation Temperature Woodlands Utilización de la Tierra Precipitación Atmosférica Temperatura Formación Boscosa Canopy Height Dry Forest LIDAR Technology Terrestrial Laser Scanner Altura del Dosel Bosque Seco Tecnología LIDAR Escáner Láser Terrestre Región Chaqueña Land Use Precipitation Temperature Woodlands Utilización de la Tierra Precipitación Atmosférica Temperatura Formación Boscosa Canopy Height Dry Forest LIDAR Technology Terrestrial Laser Scanner Altura del Dosel Bosque Seco Tecnología LIDAR Escáner Láser Terrestre Región Chaqueña Ferraina, Antonella Baldi, German De Abelleyra, Diego Grosfeld, Javier Veron, Santiago Ramón An insight into the patterns and controls of the structure of South American Chaco woodlands |
description |
Logging, grazing, wood extraction, and anthropogenic fires are pervasive throughout the subtropical dry vegetation of South America leading to changes in woodlands structure and ultimately its degradation. The Chac ohaco biome encompasses the second-largest forest in South America and has a long history of intensive use. We sought to characterize the structure and heterogeneity of its woodlands across biogeo graphic subunits and climatic gradients, and evaluate structure controls. We quantified canopy height, cover, vertical complexity, vegetation amount above 3 m and total veg etation amount over 58 woodlands within the Argentinean Chaco by means of terres trial laser scanner. We assessed the relationship between three groups near the maximum, average and minimum values of each structural variable and precipitation, temperature and temperature of the coldest month using quantile regressions. We found large variability in structural attributes within each biogeographical subunit, showing woodland areas with similar structure across broad gradients of climate. This suggests a considerable impact of current and past land use in shaping woodland struc tures across the Chaco. Overall, structural variables were positively associated with precipitation and temperature, albeit more strongly to the former, except for canopy height, which showed a strong association with mean temperature of the coldest month. We hypothesize that land-use impact on woodland structure decreases with increasing precipitation, as the lack of water may limit the recovery of vegetation struc ture. Our results contribute to a better understanding of variation in key structural vari ables of Chaco woodlands in relation to climate and land use. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Land Use Precipitation Temperature Woodlands Utilización de la Tierra Precipitación Atmosférica Temperatura Formación Boscosa Canopy Height Dry Forest LIDAR Technology Terrestrial Laser Scanner Altura del Dosel Bosque Seco Tecnología LIDAR Escáner Láser Terrestre Región Chaqueña |
author |
Ferraina, Antonella Baldi, German De Abelleyra, Diego Grosfeld, Javier Veron, Santiago Ramón |
author_facet |
Ferraina, Antonella Baldi, German De Abelleyra, Diego Grosfeld, Javier Veron, Santiago Ramón |
author_sort |
Ferraina, Antonella |
title |
An insight into the patterns and controls of the structure of South American Chaco woodlands |
title_short |
An insight into the patterns and controls of the structure of South American Chaco woodlands |
title_full |
An insight into the patterns and controls of the structure of South American Chaco woodlands |
title_fullStr |
An insight into the patterns and controls of the structure of South American Chaco woodlands |
title_full_unstemmed |
An insight into the patterns and controls of the structure of South American Chaco woodlands |
title_sort |
insight into the patterns and controls of the structure of south american chaco woodlands |
publisher |
Wiley |
publishDate |
2022 |
url |
http://hdl.handle.net/20.500.12123/11799 https://onlinelibrary.wiley.com/doi/abs/10.1002/ldr.4186 https://doi.org/10.1002/ldr.4186 |
work_keys_str_mv |
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